This picture proves once and for all how important it is to read the label on the can.

It shows a mystery woman who reportedly ended up in A&E after confusing her hair mousse with a can of expanding builder’s foam.

The image, believed to have been taken at a hospital somewhere in Eastern Europe, has been widely shared on social media on Tuesday.

Big mousse-take: This image, which has begun circulating on social media on Tuesday, shows a mystery woman, believed to be from Eastern Europe, who mixed up hair mousse with builders’ foam and ended up in hospital

She can be seen sitting in a waiting room looking understandably unhappy with her situation with a giant solid helmet of polyurethane foam on her head.

Expanding polyurethane foam has a number of uses in DIY situations – although ‘hair product’ is not one of them

Builders’ and at-home-handymen used the foam for everything from preventing leaks, to filling gaps during construction and holding items in place.